I came home from work to find the CO alarm going off in our camper. According to the booklet, the red light and beeps indicate that it had detected propane. The camper was locked up and closed off. The valve on propane tank is securely closed. I opened the door and windows, turned on the fan and it took at least 25 minutes before the alarm subsided. It's a brand new [email protected]
so I know the alarm unit isn't anywhere near the end of life. Any ideas on what may have set off the alarm? I'm not aware of any additional propane sources.